This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 135 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 135 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. True or false:CO2 is converted into organic materials by decomposition after it is dissolved into the ocean in the carbon cycle. A) True. B) False. Show Answer Correct Answer: B) False. 2. Which of the following is NOT a biotic factor? A) Owl. B) Coral. C) Wood. D) Water. Show Answer Correct Answer: D) Water. 3. Forms the basis of all organic compounds A) Carbon. B) Nitrogen. C) Oxygen. D) Hydrogen. Show Answer Correct Answer: A) Carbon. 4. Commensalism is A) A relationship in which both species benefit. B) A relationship in which one organism lives on or inside another organism and harms it. C) A relationship in which two species live close together. D) A relationship in which one organism benefits and the other does not. Show Answer Correct Answer: D) A relationship in which one organism benefits and the other does not. 5. Which of the following is an example of a vertebrate animal? A) Fly. B) Worm. C) Bird. D) Starfish. Show Answer Correct Answer: C) Bird. 6. What is meant by "solar radiation equilibrium" in the related ecology principle? A) The complex atmospheric conditions combined with the net influx and radiation outflux produces a long term balance. B) The ecosystem of the earth is maintained by the constant heating of the planet. C) The exact incoming solar radiation is necessary for sustaining life. D) None of above. Show Answer Correct Answer: A) The complex atmospheric conditions combined with the net influx and radiation outflux produces a long term balance. 7. The part of Earth where organisms can live. A) Biosphere. B) Miosphere. C) Hemisphere. D) Equator. Show Answer Correct Answer: A) Biosphere. 8. Which biome experiences very high temperatures during the day and very low temperatures during the night? A) Tropical rainforest. B) Taiga. C) Desert. D) Temperate deciduous. Show Answer Correct Answer: C) Desert. 9. A group of organisms of the same species living in the same place at the same time is called a(n) ..... A) Ecosystem. B) Population. C) Community. D) Organism. Show Answer Correct Answer: B) Population. 10. Put the levels of organization in an ecosystem in order from the largest to the smallest. A) Population, organism, community. B) Organism, community, population. C) Community, population, organism. D) Community, organism, population. Show Answer Correct Answer: C) Community, population, organism. 11. Top soil that is frozen is called A) Soil Freeze. B) Permafrost. C) Ice. D) Frost Bite. Show Answer Correct Answer: B) Permafrost. 12. Which of the following in biotic? A) Soil. B) Gold. C) Paper. D) Grapes. Show Answer Correct Answer: D) Grapes. 13. Layer of the seed that stores food for the seed to use during the process of germination A) Epicotyl. B) Cotyledon. C) Hypocotyl. D) Radicle. Show Answer Correct Answer: B) Cotyledon. 14. Besides sunlight, what else do plants need to make food? A) Water & oxygen. B) Water & carbon dioxide. C) Predators & dirt. D) None of above. Show Answer Correct Answer: B) Water & carbon dioxide. 15. Most of the nutrients in the rainforest ecosystem are in the A) Organisms. B) Topsoil. C) Air. D) Groundwater. Show Answer Correct Answer: A) Organisms. 16. A meat eater that can eat herbivores, omnivores or carnivores A) Carnivore. B) Herbivore. C) Omnivore. D) None of above. Show Answer Correct Answer: A) Carnivore. 17. In mutualism A) Both species benefit. B) One species is killed. C) Both species fight for something. D) One species is unaffected. Show Answer Correct Answer: A) Both species benefit. 18. Seafloor spreading occurs near what feature? A) An abyssal plain. B) A mid-ocean ridge. C) A subduction trench. D) A mountain ridge. Show Answer Correct Answer: B) A mid-ocean ridge. 19. Because energy is lost as you move from lower to higher trophic levels, there are usually ..... organisms at higher trophic levels A) More. B) Less. C) The same amount. D) All of these are possible. Show Answer Correct Answer: B) Less. 20. A human & a Tape Worm:The tape worm gets a place to live in the intestines of the human and food from the human. The human loses weight and nutrients from the tape worm. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: C) Parasitism. ← PreviousNext →Related QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9Ecology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books